Flashlight and switch therefor



Aug. 2, 1966 J. P. carrs.v I FLASHLIGHT AND SWITCHv zmxaliEFORA Filedmay 25. 196A maf. 4||Lul2 Unite Sttes atent 3,264,464 j FLASHLIGHT ANDSWITCH THEREFR Jules P. Gits, 1003 Lathrop Ave., River Forest, Ill.Filed May 25, 1964, Ser. No. 369,670 4 Claims. (Cl. 24U-10.67)

This invention relates to improvements in molded articles and methods ofmaking same. More particularly, this invention relates to improvementsin flashlights which are made of plastic material.

It is, therefore, an object of the present invention to provide animproved flashlight which is made of plastic material.

In making a flashlight of plastic material, it is customary to provide ablade-type conductor, adjacent one end of the housing for thatflashlight, which can abut and electrically engage a combined reflectorand threaded socket for a lamp. That blade-type conductor extends to theswitch of the flashlight; and a further blade-type conductor extendsfrom that switch to the other end of the housing for t-hat flashlight.Some difliculty has 'been experienced with the blade-type conductorswhich extend from the combined reflectors and threaded sockets for thelamps to the electric switches of flashlights made of plastic material;because those conductors could readily become 4bent to the point wherethey were not usable. It would be desirable to Vprovide a flashlightwhich is made of plastic material and which has a blade-type conductor,4between the switch and the combined reflector and threaded socket forthe lamp, that is substantially free from the risk of being bent. Thepresent invention pro- .vides such a flashlight; and it is, therefore,an object of the present invention to provide a ashlight which is madeof plastic material and which has a yblade-type conductor,

between the switch and the combined reflector and threaded socket forthe lamp, that is substantially free from the risk of being bent.

The switches of flashlights which are made of plastic material arefrequently unsubstantial in nature and unsatisfactory in use. It wouldbe desirable to provide a switch, for flashlights which are made ofplastic material, that is inexpensive but that is sturdy and is reliablein operation. The present invention provides such a switch;

and it is, therefore, an object of the present invention to provide aswitch for a ashlight, which is made of plastic material, that isinexpensive but that is sturdy and is lof flashlight which is made ofplastic material and which is made in accordance with the principles andteachings of the present invention,

FIG. 2 is a sectional view through the flashlight of FIG. 1, and it istaken along the plane indicated 'by the line 2-2 in FIG. 1,

FIG. 3 is another sectional view through the flashlight kof FIG. 1, andit is taken along the plane indicated 'by the line 3 3 in FIG. 1,

FIG. 4 is still another sectional view through the flashlight of FIG. 1,and it is taken along the plane indicated by the line 4--4 in FIG. 1,

rice

FIG. 5 is a sectional view, on a larger scale, through the switch of theflashlight of FIG. 1,

p FIG. 6 is a sectional view which is similar to that of FIG. 5 butwherein the switch is in the flash position,

FIG. 7 is a sectional View which is similar to that of FIG. 5 butwherein the switch is in the on position, and

FIG. 8 is a sectional view through the switch that is 'shown in FIGS.5-7 and it is taken along the plane indicated by the line 8--8 in FIG.7.

Referring to the drawing in detail, the numeral 10 generally denotes thebody portion of a flashlight housing which is made of plastic material.While different plastic materials could be used, ethyl cellulose is apreferred plastic material. A right-angle offset 12 is provided at theupper end of the body portion 1t), and a partition 14 is disposedbetween lthe right-angle offset and the body portion 10. The partition14 is provided with upwardly and inwardly bowed portions 15; and thoseportions are shown particularly by FIGS. 1 and 3. A slot 16 is providedin one of those upwardly and inwardly bowed portions, and a slot 18 isprovided in the other of those upwardly and inwardly bowed portions.Those slots place the right-angle offset 12 in communication with thebody portion 10. A narrow slot 19 also is provided in the partition 14,and that slot also places the right-angle offset 12 in communicationwith the body portion 10. The slot 19 is spaced forwardly of the slot16, as shown particularly by FIG. 1. The right-angle offset 12 has acylindrical end 2t); and that cylindrical end projects outwardly beyondthe slot 19. A helical screw thread 22 is molded onto the exterior ofthe cylindrical end 2t) of the right-angle offset 12.

A helical screw thread 24 is forme-d on the lower end of thel'bodyportion 10, as shown particularly by FIG. 1.

A generally rectangular slot 26 is provided in the wall of the bodyportion 10, intermediate the right-angle offset 12 and the thread 24 atthe lower end of that body portion. A blade-type conductor 28 ofelongated form is disposed at the inner surface of the body portion 10,and that conductor extends from a point adjacent the lower end of thatbody portion to a point immediately adjacent the lower portion of theslot 26. A sleeve 30, with a radially-extending' annular flange 32,telescopes into the lower end of the body portion 10; and that sleeveunderlies the lower end of the blade-type conductor 28, as shownparticularly by FIG. 4. A fastener 34 of electrically-conductivematerial, such as a metal rivet, extends through openings in the bodyportion 10, the blade con- .ductor 28 and the sleeve 30; and thatfastener permanently holds that sleeve and that blade conductor inelectrical engagement with each other and in assembled relation with thebody portion 10. A small recess is formed in the outer surface of thelower end of the body portion l; and that recess accommodates the outerend ofthe fastener 34. That recess keeps the outer end of that fastenerfrom blocking the helical screw thread 24. Fasteners 36, 38 and 44) ofelectrically conductive material, such as metal rivets, extend throughopenings in the upper end of the blade-type conductor 28 and in the wallof the body portion 10 to hold that upper end of that blade-typeconductor in assembled relation with that lbody portion. The fasteners36, 38 and 4t) are disposed adjacent each other but are physicallyspaced apart to define indentations therebetween; and all of thosefasteners are in electricallyconducting engagement with the upper end ofthe bladetype conductor 28.

The numeral 42 denotes a blade-type conductor of L- shapedconfiguration; and the long arm of that conductor is parallel to theaxis of the body portion 10, while the short arm of that conductor isparallel to the axis of the right-angle offset 12. The long arm of theconductor 42 extends through the slot 16 and extends toward the upperedge of the slot 26 in the wall of the body portion 10. The short arm ofthat conductor extends to, and projects a short distance beyond, thefront face of the cylindrical end 20 of the right-angle offset 12. Afastener 44 of electrically-conductive material, such as a metal rivet,extends through an opening in the lower end of the long arm of theconductor 42 and through an opening in the wall of the body portion tofixedly secure that lower end to that body portion. That fastener willbe in electrically-conducting relation with that conductor. A fastener46 such as a rivet, extends through an opening in the forward end of theshort arm of the conductor 42 and through an opening in the cylindricalend of the right-angle offset 12 to maintain that short arm in assembledrelation with that cylindrical end. The fastener 46 is immediatelyadjacent the free end of the short arm of the conductor 42, and it willprovide full support for that free end. A small recess is formed in theouter surface of the cylindrical end 20 of the right-angle offset 12;and that recess accommodates the outer end of the fastener 46. That4recess keeps the outer end of that fastener from blocking the helicalscrew thread 22.

The numeral denotes a clip of standard design; and the upper end of thatclip has openings therein to accommodate fasteners 47, such as rivets. Akeeper plate 49 is disposed within the right-angle offset 12; and thatkeeper plate has openings therein to accommodate the inner ends of thefasteners 47. Those fasteners will permanently secure the upper end ofthe fastener 45 to the ashlight; and, while the lower end of that clipwill normally bear against the body portion 10, that lower end can bemoved away from that body portion to permit that lower end to telescopeover a belt or other portion of the apparel of the user.

The numeral 48 denotes an elongated hollow slide of insulating material;and that slide can be made of the same material of which the bodyportion 10, the rightangle offset 12, and the partition 14 are made. A4generally cylindrical opening 50 is provided in the upper end of theslide 48, and that opening has an enlarged-diameter inner end. A secondgenerally cylindrical opening 52 is provided in the slide 48, adjacentthe center of that slide; and an annular rib 54 is provided on the outerface of that slide adjacent that opening. That rib and the opening 52are preferably concentric.

An elongated contactor 56 is disposed within the hollow portion of theslide 48; and that contactor has a generally V-shaped reentrant lowerend 58 and an offset upper end 60. An opening in the center of thecontactor 56 is in register with the opening 52 in the slide 48; and aguide 62, which is Igenerally U-shaped in cross section, has an openingin the closed end thereof that is in register with the opening 52 andwith the opening in the contactor 456. Those various openingsaccommodate the shank of a fastener 66, such as a rivet; and thatfastener permanently secures the contactor 56 and the guide 62 to theslide 48. The legs of the guide 62 are dimensioned to fit within theslot 26 in the wall of the body portion 10 of the flashlight; and thoselegs have feet 64 which project outwardly beyond the sides of the slot26 to underlie those sections of the wall of the body portion 10 whichdefine the sides of the slot 26. Those feet hold the slide 48, thecontactor 56, and the guide 62 in assembled relation with the bodyportion 10 of the flashlight while permitting reciprocation of thatslide, that contactor, and that guide relative to that body portion. Apush button 68, with a radiallyextending flange at the inner endthereof, is disposed within the opening 50 in the slide 48; and thatpush button is in register with the offset upper end of the con- -tactor56. That push button will be disposed within the `opening 50 before thecontactor 56 Iand the guide 62 are secured to the slide 48 by thefastener 66.

The numeral 70, adjacent the upper part of FIG. l, denotes a contactwhich has a U-shaped clamping portion 72 and a springy end 74. The freeend of the U-shaped clamping portion. 72 extends through the slot 19 andunderlie-s the partition 14; and that U-shaped clamping portion isdimensioned to intimately engage that partition, and thereby preventaccidental separation of the contact from the flashlight.

A combined reflector 76 and threaded socket 78 of standard design isdimensioned so the greater portion thereof will t within the right-angleoffset 12 and the cylindrical end 20 of that right-angle offset.However, the outer end of the reector portion 716 will have a largerdiameter than the inner diameter of the cylindrical end 20. A threadedretainer 80 can coact with the threaded socket 78 to releasably hold alamp 82 in assembled relation with the combined reflector 76 andthreaded socket 78. A transparent disc 84 will abut the large diameterportion of the reflector 76 and will thus overlie the lamp 82. Aresilient annulus 86 of U-shaped cross section will releasably securethe disc 84 to the reflector 76.

An annular retainer 88 has an internal screw thread which can mate withthe external screw thread 22 on the cylindrical end 20 of theright-angle offset 12. That retainer has an inwardly-extending angewhich can strongly urge the resilient annulus 86, the disc 84, and thelarge diameter portion of the reflector 76 toward the free end of theshort arm of the conductor 42. As a result, the re tainer 88 will coactwith the resilient annulus 86 to resiliently hold the lar-ge diameterportion of the reflecv tor 76 in electrically-conducting relation withthe free end of the conductor 42. Because that free end receives fulland immediate support from the fastener 46 and from the adjacent portionof the cylindrical end 20 of the rightangle offset 12, that free end isable to resist bendingdespite any tightening forces which might beapplied to the annular retainer 88 by a heavy-handed user. This isimportant; because it assures full electrical engagement between thereflector 76 and the conductor 42 at all times.

The numeral 90 denotes a cup-shaped closure which has an internal screwthread 92 and a shoulder 94 adjacent the lower end of that thread. Theinternal screw thread 92 can mate with the external screw thread 24 atthe lower end of the body portion 10 of the flashlight. A lamp-holdingbracket 96 of standard design rests upon the shoulder 94 in the closure90; and that bracket can hold an extra lamp 98. A spiral spring isdimensioned to fit snugly within the upper portionof the closure 90; andthat spring will normally =hold the lamp-holding bracket `96 within thatclosure. However, when desired, that spring can yield sufficiently topermit it to be withdrawn from the closure 90, so the lamp-holdingbracket 96 can be removed from that closure to make the extra lamp 98available for replacement purposes.

The numerals 102 and 104 denote primary batteries which can be insertedinto the body portion 10 through the sleeve 30 adjacent the lower end ofthat body por-tion. The central contact of the battery 102 will engagethe U shaped portion 72 of the contact 70, and the central contact ofthe battery 104 will engage the bottom of the casing of the battery 102.The bottom of the casing of the battery 104 will engage the spring 100;and that spring will engage Ithe ange 32 on the sleeve 30.

The annular retainer 88 will hold the center contact of' the lamp 82 inelectrically-conducting engagement with the springy end 74 of thecontact '72. Also, that annular retainer will hold the reflector 76 inelectrically-conducting engagement with the free end of the short arm ofthe conductor 42. This means that whenever the batteries 102 and 104 arein position, and whenever the annular retainer 88 and the closure 90 arein position, a continuous circuit is provided from the fastener 44 vaconductor 42, reflector 76, threaded socket 78, lamp 82, contact 70,primary battery 102, primary battery 104, spring 100, sleeve 30, andconductor 28 to the fasteners 40, 38 and 36.

The reentrant lower end 58 of the contactor 56 will always engage one ormore of the fasteners 40, 38 and 36;

and, whenever the offset upper end 60 of that contactor is moved intoengagement with the fastener 44, as shown by FIG. 7, the circuit withinthe fiashlight will be cornpleted and the lamp 32 will be illuminated.At such time, the reentrant lower end S8 of the contactor 56 will belodged within the recess between fasteners 36 and 38 and will resistshifting of the contactor 56 out of the on position of FIG. 7. In theoff position of the slide 48, shown by FIG. 5, the offset end 60 of thecontactor 56 is longitudinally displaced from the fastener 44. As aresult, even if the flash button 68 were to be pushed inwardly, to bendthe offset end 60 of the contactor S6 inwardly, that offset end couldnot be caused to engage the fastener 44. At such time, the reentrantIlower end 58 of the contactor 56 will engage the lower face of thefastener 40 and resist accidental shifting of the slide 48 upwardly awayfrom the position shown in FIG. 5. However, whenever desired, the userof the fiashlight can shift the slide 48 upwardly until the reentrantlower end 58 of the contactor 56 comes to rest in the recess between thefasteners 38 and 40; and, at such time, that reentrant lower end willtend to hold the slide 48` in the position shown by FIG. 6. This meansthat the offset end 60 of that contactor will be in register with'thefastener 44; and the user of the ashlight can illuminate the lamp 82 bypressing inwardly on the ash button 68. The fiash position of thatbutton is shown by FIG. 6; and the normal position -of that button isshown by FIGS. 5 and 7.

The reentrant lower end 58 of the contactor 56 will hold the slide 48 inits off, flash or on positions as long as desired; and it will therebyavoid accidental shifting of the slide 48. However, the V-shapedconfiguration of that reentrant lower end enables the outer faces ofthat lower end to act as inclined planes, and thereby ease that lowerend out of the recesses between the fasteners 36, 38 and 40 whenever theuser of the flashlight wishes to shift the slide 48.

Whereas the drawing and accompanying description have shown anddescribed a preferred embodiment of the present invention it should beapparent to those skilled in the art that various changes may be made inthe form of the invention without affecting the scope thereof.

What I claim is:

4l. In a fiashlight which has a housing with an opening at `one endthereof, a lamp adjacent the other end of said f housing, a switch, ablade-type conductor extending from said switch toward said lamp, and asecond blade-type conductor extending from said switch toward said oneend of said housing; the improvement which comprises:

(a) a fastener which secures one end of the first said blade-typeconductor to said housing adjacent said switch,

(b) a plurality of fasteners securing one end of said second blade-typeconductor to said housing adjacent said switch,

(c) all of said fasteners being electrically conductive,

(d) said fasteners of said plurality of fasteners being aligned andbeing closely adjacent each other,

(e) a slide for said switch,

(f) an elongated resilient contactor for said switch which is secured toand movable with said slide,

(g) said contactor having a reentrant end which is selectivelydisposable lin recesses intermediate and defined by said fasteners ofsaid plurality of fasteners,

(h) said reentrant end coacting with said fasteners of said plurality offasteners to prevent accidental shifting of said slide and saidcontactor,

(i) said contactor having an offset adjacent the other end thereof,

(j) said other end of said contactor being selectively movable intoregister with the first said fastener to permit a flash button carriedby said slide to press said other end of said contactor into engagementwith the first said fastener,

(k) said reentrant end of said contactor being lodged within a recessbetween 4two of said fasteners of said plurality of fasteners wheneversaid other end `of said contactor is in register with the first saidfastener,

(l) said other end of said contactor being movable into abuttingengagement with the first said fastener to turn said switch on, v

(in) said reentrant end of said contactor being lodged within a recessbetween two of said fasteners of said plurality of fasteners wheneversaid other end of said contactor is in abutting engagement with thefirst said fastener,

(n) the outer faces of said reentrant end of said contactor acti-ng asinclined planes to ease said reentrant end out of said recesses definedby said fasteners of said plurality of fasteners,

(o) said contactor being elongated and arcuate and being secured to saidslide adjacent the center thereof,

(p) a combined reiiector and holder for said lamp,

(q) a recess in said housing adjacent said other end of said housingwhich can accommodate said combined reiector and holder for said lamp,

(r) a helical screw thread at the exterior of said housingadjacent saidother end of said housing,

(s) the other end of the first ksaid blade-type conductor extending toand projecting a short distance beyond said other end of said housing,

(t) said other end of said housing having an opening thereinintermediate the ends of said helical screw thread and having a recesssurrounding said opening,

(u) the first said blade-type conductor having an opening therein inregister with said opening in sa-id other end of said housing,

(v) a securing fastener thatY is disposed within said opening in thefirst said blade-type conductor and within said opening and said recessin said other end of said housing, l

(w) said securing fastener and said opening in the first said blade-typeconductor being closely adjacent said other end of said first saidblade-type conductor so said other end of -said first said blade-typeconductor receives full support from said other end of said housing andis thus strongly resistant to bending,

(x) said recess in said other end of said housing keeping said fastenerfrom blocking said helical screw thread,

(y) said other end of said housing being offset at a right-angle fromthe rest of said housing,

(z) a partition intermediate said one end and said other end of saidhousing which has slots therein, and (aa) a resilient contact that has aU-shaped reentrant end and a springy end,

(ab) one of said slots in said partition accommodating part of the firstsaid blade-type conductor,

(ac) another of said slots accommodating part of said U-shaped reentrantend of said resilient contact, (ad) -said U-shaped reentrant end of saidresilient contact intimately engaging said partition and preventingaccidental separation of said resilient contact from said housing,

(ae) said springy end of said resilient contactbeing adapted to receivethe center contact of said lamp.

2. In a iiashlight which has a housing with an opening at one endthereof, a lamp adjacent the other end of said housing, a switch, ablade-type conductor extending from said switch toward said lamp, and asecond blade-type conductor extending from said switch toward said oneend of said housing; the improvement which comprises:

(a) a fastener which secures one end of the first said blade-typeconductor to said housing adjacent said switch,

(b) a plurality of fasteners securing one end of said second blade-typeconductor to said housing adjacent said switch,

(c) all of said fasteners being electrically conductive,

(d) said fasteners of said plurality of fasteners being aligned andbeing closely `adjacent each other,

(e) a slide for said switch, and

(f) an elongated resilient contactor for said switch which is secured toand movable with said slide,

(g) said contactor having a reentrant end which is selectivelydisposable in recesses intermediate and defined by said fasteners ofsaid plurality of fasteners,

(h) said reentrant end coacting with said fasteners of said plurality offasteners to prevent accidental shifting of said slide and saidcontactor,

(i) said contactor having an offset adjacent the other end thereof,

(j) Said other end of said contactor being selectively movable int-oregister with the first said fastener to permit a flash button carriedby said slide to press said other end of said contactor into engagementwith the first said fastener,

(k) said reentrant end of said contactor being lodged within a recessbetween two of said fasteners of said plurality of fasteners wheneversaid lother end of said contactor is in register with the first saidfastener,

(l) said other end of said contactor being movable into abuttingengagement with the first said fastener to turn said switch n,

(m) said reentrant end of said contactor being lodged Within a recessbetween two of said fasteners of said plurality of fasteners wheneversaid other end of said contactor is in abutting engagement with thefirst said fastener,

(n) the outer faces of said reentrant end of said contactor acting asinclined planes to ease said reentrant end out of said recesses definedby said fasteners of said plurality of fasteners,

(0) said contactor being elongated and arcuate and being secured to saidslide adjacent the center thereof.

3. In a flashlight which has a housing with an opening at one endthereof, a lamp adjacent the other end of said housing, a switch, aconductor extending from said switch toward said lamp, and a secondconduct-or extending from said switch toward said one end of saidhousing; the Vimprovement which comprises:

(a) a fastener which secures one end of the first said conductor to saidhousing adjacent said switch,

(b) a plurality of fasteners securing one end of said second c-onductorto said housing adjacent said switch,

(c) all of said fasteners being electrically conductive,

(d) said fasteners of :said plurality of fasteners being aligned andbeing closely adjacent each other,

(e) a slide for said switch,

(f) a contactor for said switch which is secured to and movable withsaid slide,

(g) said contactor having a reentrant end which is selectivelydisposable in recesses intermediate and defined by said fasteners ofsaid plurality of fasteners,

(h) said reentrant end coacting with said fasteners of said plurality offasteners to prevent accidental shifting of said yslide and saidcontactor,

(i) the other end of said contactor being selectively movable intoregister with the rst said fastener to permit a iiash button carried bysaid slide to press said other end of said contactor into engagementwith the first said fastener,

(j) said reentrant end of said contactor being lodged within a recessbetween two of said fasteners of said plurality of fasteners wheneversaid other end of said contactor is in register with the first saidfastener.

(k) said other end of said contactor being movable into abuttingengagement with the first said fastener to turn said switch on,

(l) said reentrant end of said contactor being lodged Within a recessbetween two of said fasteners of said plurality of fasteners wheneversaid other end `of said contactor is in abutting engagement with thefirst said fastener,

(m) the outer faces of said reentrant end of said contactor acting asinclined planes to ease said reentrant end out of said recesses definedby said fasteners of said plurality of fasteners,

(n) said contactor being elongated and being secured to said s-lideadjacent the center thereof.

4. In a ashlight which has a housing with an opening at one end thereof,a lamp adjacent the other end of said housing, a switch, a conductorextending from said switch toward said lamp, and a second conductorextending from said switch toward said one end of said housing; theimprovement which comprises:

(a) one end of the first said conductor being adjacent said switch,

(b) a plurality of fasteners securing one end of said second conductorto said housing adjacent said switch,

(c) said fasteners being electrically conductive,

(d) said fasteners being closely adjacent each other,

(e) a slide for said switch,

(f) a contactor for said switch which is secured to and movable withsaid slide,

(g) said contactor having a reentrant end which is selectivelydisposable in recesses intermediate and defined by said fasteners,

(h) said reentrant end coacting with said fasteners to preventaccidental shifting of said slide and said contactor,

(i) the other end of said contactor being selectively movable intoregister with said one end of the first said conductor to permit `a ashbutton carried by :said slide to press said other end of said contactorinto engagement with said one end of said first said conductor,

(j) said reentrant end of said contactor being adjacent, and havingmovement thereof limited by, one of said fasteners whenever said otherend of said c-ontactor is in register with said one end of said firstsaid conductor,

(k) :said yother end of said contactor being movable into abuttingengagement with said one end of said first said conductor to turn saidswitch on,

(l) said reentrant end of said contactor being adjacent, and havingmovement thereof limited by, another of said fasteners whenever saidother end of said contactor is in abutting engagement with said one endof said first said conductor,

(m) the outer faces of :said reentrant end of said contactor acting asinclined planes to ease said reentrant end past said fasteners.

References Cited by the Examiner UNITED STATES PATENTS 1,902,590 3/1933Shannon 200--60 1,968,090 7/1934 Muldoon 200-60 2,226,353 12/ 1940 Wood200-60 X 2,540,471 2/ 1951 Borsody 24U-10.66 X 2,599,253 6/1952 Gits24U- 10.67

NORTON ANsHER, Primary Examiner.

J. F, PETERS, Assistant Examiner,

4. IN A FLASHLIGHT WHICH HAS A HOUSING WITH AN OPENING AT ONE END THEREOF, A LAMP ADJACENT THE OTHER END OF SAID HOUSING, A SWTICH, A CONDUCTOR EXTENDING FROM SAID SWITCH BOARD TOWARD SAID LAMP, AND A SECOND CONDUCTOR EXTENDING FROM SAID SWITCH TOWARD SAID ONE END OF SAID HOUSING; THE MOVEMENT WHICH COMPRISES: (A) ONE END OF THE FIRST SAID CONDUCTOR BEING ADJACENT SAID SWITCH, (B) A PLURALITY OF FASTENERS SECURING ONE END OF SAID SECOND CONDUCTOR TO SAID HOUSING ADJACENT SAID SWITCH, (C) SAID FASTENERS BEING ELECTRICALLY CONDUCTIVE, (D) SAID FASTENERS BEING CLOSELY ADJACENT EACH OTHER, (E) A SLIDE FOR SAID SWITCH, (F) A CONTACTOR FOR SAID SWITCH WHICH IS SECURED TO AND MOVABLE WITH SAID SLIDE, (G) SAID CONTACTOR HAVING A REENTRANT END WHICH IS SELECTIVELY DISPOSABLE IN RECESSES INTERMEDIATE AND DEFINED BY SAID FASTENERS, (H) SAID REENTRANT END COACTING WITH SAID FASTENERS TO PREVENT ACCIDENTAL SHIFTING OF SAID SLIDE AND SAID CONTACTOR, (I) THE OTHER END OF SAID CONTACTOR BEING SELECTIVELY MOVABLE INTO REGISTER WITH SAID ONE END OF THE FIRST SAID CONDUCTOR TO PERMIT A FLASH BUTTON CARRIED BY SAID SLIDE TO PRESS SAID OTHER END OF SAID CONTACTOR INTO ENGAGEMENT WITH SAID ONE END OF SAID FIRST SAID CONDUCTOR, (J) SAID REENTRANT END OF SAID CONTACTOR BEING ADJACENT, AND HAVING MOVEMENT THEREOF LIMITED BY, ONE OF SAID FASTENERS WHENEVER SAID OTHER END OF SAID CONTACTOR IS IN REGISTER WITH SAID ONE END OF SAID FIRST SAID CONDUCTOR, (K) SAID OTHER END OF SAID CONTACTOR BEING MOVABLE INTO ABUTTING ENGAGEMENT WITH SAID ONE END OF SAID FIRST SAID CONDUCTOR TO TURN SAID SWITCH "ON", (L) SAID REENTRANT END OF SAID CONTACTOR BEING ADJACENT, AND HAVING MOVEMENT THEREOF LIMITED BY, ANOTHER OF SAID FASTENERS WHENEVER SAID OTHER END OF SAID CONTACTOR IS IN ABUTTING ENGAGEMENT WITH SAID ONE END OF SAID FIRST SAID CONDUCTOR, (M) THE OUTER FACES OF SAID REENTRANT END OF SAID CONTACTOR ACTING AS INCLINED PLANES TO EASE SAID REENTRANT END PAST SAID FASTENERS. 